O Brien Dam
Key Takeaway
O Brien Dam is classified as low hazard in Iowa. It was completed in 1989 and is 37 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 33 ft (taller than 63.3% in IA) |
| Dam Length | 250 ft |
| Dam Type | Earth |
| Max Storage | 36 acre-ft |
| Normal Storage | 16 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1989 (37 years old) |
| NID ID | IA02467 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Tom OBrien
Private
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Significant Hazard 43 ftFrequently Asked Questions
What is the hazard classification of O Brien Dam?
O Brien Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates O Brien Dam?
O Brien Dam is owned by Tom OBrien (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was O Brien Dam built?
O Brien Dam was completed in 1989, making it 37 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of O Brien Dam?
O Brien Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is O Brien Dam?
O Brien Dam has a dam height of 33 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.